Global Patent Index - EP 0420284 A2

EP 0420284 A2 19910403 - Preparation of zirconia sintered body.

Title (en)

Preparation of zirconia sintered body.

Title (de)

Herstellung eines Sinterkörpers aus Zirkoniumoxid.

Title (fr)

Préparation d'un corps fritté en zircone.

Publication

EP 0420284 A2 19910403 (EN)

Application

EP 90118742 A 19900928

Priority

JP 25410189 A 19890929

Abstract (en)

Zirconia sintered bodies are produced by injection molding a zirconia composition comprising zirconia powder and an organic binder and firing the molded composition. High density sintered bodies having strength, white transparency and smoothness are obtained when zirconia powder containing 2 to 10 mol% of yttria in solid solution form and having a specific surface area of up to 12 m<2>/g as measured by the BET method and a product of average particle size by specific surface area of up to 3 mu m.m<2>/g is used.

IPC 1-7

C04B 35/48

IPC 8 full level

C04B 35/48 (2006.01); C04B 35/486 (2006.01); C04B 35/622 (2006.01)

CPC (source: EP)

C04B 35/486 (2013.01)

Designated contracting state (EPC)

CH DE DK ES FR GB IT LI SE

DOCDB simple family (publication)

EP 0420284 A2 19910403; EP 0420284 A3 19910724; EP 0420284 B1 19940119; EP 0420284 B2 19971229; AU 6328390 A 19910411; AU 636655 B2 19930506; DE 69006153 D1 19940303; DE 69006153 T2 19940811; DE 69006153 T3 19980806; JP 3047444 B2 20000529; JP H03174356 A 19910729

DOCDB simple family (application)

EP 90118742 A 19900928; AU 6328390 A 19900928; DE 69006153 T 19900928; JP 25870090 A 19900927